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Math (page 94)These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 931 to 940. |
MAGIC SQUARE: Calculate A-B+C
 into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B+C.','/archive/2023/01/12/magic-square-1673481954.png','/MAGIC-SQUARE-Calculate-A-B-C/7510'))
The aim is to place the some numbers from the list (3, 7, 12, 14, 18, 23, 27, 31, 36, 65, 71) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B+C. Find number abc
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If 9a82b - 798ca = 1a967 find number abc. Multiple solutions may exist. Calculate the number 802
. Each of the numbers can be used only once.','/archive/2023/01/09/numbermania-1673222701.png','/calculate-the-number-802/7507'))
NUMBERMANIA: Calculate the number 802 using numbers [4, 2, 2, 7, 98, 628] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Train Test
Tom is applying for a job as a signalman for the local railroad and is told to meet the inspector at the signal box.
The inspector decides to give Tom a pop quiz, asking: "What would you do if you realized that two trains were heading towards each other on the same track?"
Tom says: "I would switch one train to another track."
"What if the lever broke?" asks the inspector.
"Then I'd run down to the tracks and use the manual lever down there", answers Tom.
"What if that had been struck by lightning?" challenges the inspector.
"Then," Tom continued, "I'd run back up here and use the phone to call the next signal box."
"What if the phone was busy?"
"In that case," Tom argued, "I'd run to the street level and use the public phone near the station".
"What if that had been vandalized?"
"Oh well," said Tom, "in that case I would run into town and get my Uncle Leo".
This puzzled the inspector, so he asked, "Why would you do that?"
"Because he's never seen a train crash."
Find number abc
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If 20b25 - b3b0a = a0bc find number abc. Multiple solutions may exist. 
Calculate the number 4154
. Each of the numbers can be used only once.','/archive/2023/01/06/numbermania-1672963502.png','/calculate-the-number-4154/7504'))
NUMBERMANIA: Calculate the number 4154 using numbers [3, 2, 6, 2, 45, 814] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A+B*C
 into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B*C.','/archive/2023/01/05/magic-square-1672877188.png','/MAGIC-SQUARE-Calculate-A-B-C/7503'))
The aim is to place the some numbers from the list (10, 11, 13, 14, 18, 21, 69, 70, 73, 74, 77, 91) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B*C. Find number abc
)
If c9cac - 4c937 = 13c6b find number abc. Multiple solutions may exist. Calculate the number 9737
. Each of the numbers can be used only once.','/archive/2023/01/02/numbermania-1672617901.png','/calculate-the-number-9737/7500'))
NUMBERMANIA: Calculate the number 9737 using numbers [9, 6, 4, 7, 79, 671] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
)
If 80a33 - 77bb1 = aaca find number abc. Multiple solutions may exist. Calculate the number 2758
. Each of the numbers can be used only once.','/archive/2022/12/30/numbermania-1672358701.png','/calculate-the-number-2758/7497'))
NUMBERMANIA: Calculate the number 2758 using numbers [4, 8, 8, 8, 73, 726] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
